Scientists in George Whiteside's lab at Harvard University are developing tools that are inexpensive, portable, and do not require electricity to help health workers in the developing world. The World's Clark Boyd reports.

Scientists in George Whiteside's lab at Harvard University are developing tools that are inexpensive, portable, and do not require electricity to help health workers in the developing world. The World's Clark Boyd reports.

Scientists in George Whiteside's lab at Harvard University are developing tools that are inexpensive, portable, and do not require electricity to help health workers in the developing world. The World's Clark Boyd reports.